The Stylaster Guyot lies about 1480 km (797 nautical miles) off the coast of Queensland (show Queensland on map).

In the near vicinity of the Stylaster Guyot the water depth ranges from about 651 to 1100 metres deep (about 356 to 604 fathoms / 2140 to 3620 feet). Based on this, the Stylaster Guyot seems to rise about 454 metres (248 fathoms / 1490 feet) above the sea floor . Interestingly, within a 100 km radius of the Stylaster Guyot the water depth ranges between 402 and 2420 metres deep (about 220 to 1320 fathoms / 1320 feet).

What is a guyot? A guyot is flat top seamount thought to originally be an extinct volcano that was once above the ocean surface and has been eroded down flat over time. A good example of a guyot close to Australia is the Cascade Guyot about 200km off the coast of Tasmania. You can clearly see in the 20km terrain profile how the guyot is flat on top.

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